No Pants riders around the world 1-13-13

By By JAKE ELLISON

on January 13, 2013 7:35 PM

Photo: Getty

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Participants shed their clothes to take part in the annual 'No Pants Subway Ride' in Stockholm on Sunday. The yearly prank, organized by New York City based prank collective "Improv Everywhere" was started in 2002, asking participants to ride subway lines trouser free and act straight faced about it. (AP Photo/Jan Erik Henriksson) less

Participants shed their clothes to take part in the annual 'No Pants Subway Ride' in Stockholm on Sunday. The yearly prank, organized by New York City based prank collective "Improv Everywhere" was started in ... more

Photo: AP

Participants shed their clothes to take part in the annual 'No... Photo-4025490.55071 - Houston Chronicle

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People walk through a subway station during the worldwide 'No Pants Subway Ride' event in Mexico City on Sunday. (AFP PHOTO/RONALDO SCHEMIDT)

People walk through a subway station during the worldwide 'No Pants Subway Ride' event in Mexico City on Sunday. (AFP PHOTO/RONALDO SCHEMIDT)

Photo: RONALDO SCHEMIDT, Getty

People walk through a subway station during the worldwide 'No... Photo-4025817.55071 - Houston Chronicle

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Thousands of people prepare to ride the subway and remove their pants Sunday in New York City. They were participating in the 12th annual No Pants Subway Ride, organized by New York City prank collective Improv Everywhere. The event, refered to as a "celebration of silliness" is designed to make fellow subway riders laugh and smile. less

Thousands of people prepare to ride the subway and remove their pants Sunday in New York City. They were participating in the 12th annual No Pants Subway Ride, organized by New York City prank collective Improv ... more

Photo: John Moore, Getty

Thousands of people prepare to ride the subway and remove their... Photo-4025793.55071 - Houston Chronicle

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Carrying a bike, a participant in the annual "No Pants Subway Ride" transfers to another train in Mexico City, Sunday.

Carrying a bike, a participant in the annual "No Pants Subway Ride" transfers to another train in Mexico City, Sunday.